automatic transmission Lexus GX470 2003 Basic Functions / LEXUS 2003 GX470 OWNER'S MANUAL (OM60A45U)

For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
viiiPage
1Driving position memory switches
171
. . . . . . . . . . .
2Power window switches 33
. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 20
. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 34
. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 116 . . . . . . .
6Side vents 189
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and fog light switches 24 . . . .
8Wiper and washer switch 27
. . . . . . . . . . . . . . . . . . . . . .
9Center vents 189
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 36
. . . . . . . . . . . . . . . . . . . . .
11Car audio 195
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12Multiinformation display 53
. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls 179
. . . . . . . . . .
14Rear window defogger switch 31
. . . . . . . . . . . . . . . . . .
15Front passenger’s seat belt reminder light 46 . . . . . .
16Glove box 70
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Ashtray 66
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
18Cigarette lighter 66
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19Seat heater switches 37
. . . . . . . . . . . . . . . . . . . . . . . . . . Page
20Fourwheel drive control lever
309
. . . . . . . . . . . . . . .
21Automatic transmission selector lever 303 . . . . . . . .
22Parking brake lever 301
. . . . . . . . . . . . . . . . . . . . . . . . .
23Center differential lock switch 309
. . . . . . . . . . . . . . .
24Power outlet (12 VDC) 68
. . . . . . . . . . . . . . . . . . . . . . . . .
25Downhill assist control switch 326
. . . . . . . . . . . . . . .
26Electronic modulated suspension
control switch 320 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27Rear height control air suspension
switches 315. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Ignition switch 300
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29“2nd STRT” switch 309
. . . . . . . . . . . . . . . . . . . . . . . . . .
30Cruise control switch 312
. . . . . . . . . . . . . . . . . . . . . . .
31Steering pad switches 214
. . . . . . . . . . . . . . . . . . . . . . .
32Hood lock release lever 83
. . . . . . . . . . . . . . . . . . . . . . .
33Fuel filler door opener 84
. . . . . . . . . . . . . . . . . . . . . . . . .
34Instrument panel light control dial 60
. . . . . . . . . . . . . .
35Outside rear view mirror defogger switch 32 . . . . . . .
36Power outlet (115 VAC) main switch 68
. . . . . . . . . . . .

For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
xPage
1Automatic transmission second start
indicator light 309
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Unengaged “Park” warning light 49
. . . . . . . . . . . . . . .
3Automatic transmission fluid temperature
warning light 49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4Low washer fluid warning light 51
. . . . . . . . . . . . . . . . .
5Automatic transmission indicator lights 303 . . . . . .
6Driver’s seat belt reminder light 45
. . . . . . . . . . . . . . . .
7Turn signal indicator light 25
. . . . . . . . . . . . . . . . . . . . .
8Brake system warning light 44
. . . . . . . . . . . . . . . . . . . .
9Headlight high beam indicator light 25
. . . . . . . . . . . .
10“ABS” warning light 48
. . . . . . . . . . . . . . . . . . . . . . . . . .
11Open door warning light 49
. . . . . . . . . . . . . . . . . . . . . . .
12Tachometer 42
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13Headlight indicator light 24
. . . . . . . . . . . . . . . . . . . . . . .
14Cruise control indicator light 312
. . . . . . . . . . . . . . . .
15Engine oil replacement reminder light 51
. . . . . . . . . .
16Engine coolant temperature gauge 41
. . . . . . . . . . . . . Page
17Discharge warning light
50
. . . . . . . . . . . . . . . . . . . . . . .
18Low engine oil pressure warning light 50
. . . . . . . . . .
19Malfunction indicator lamp 47
. . . . . . . . . . . . . . . . . . . .
20Slip indicator light 322, 324, 327, 329
. . . . . . . . . . . . .
21Vehicle skid control system off
indicator light 324 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Center differential lock indicator light 309
. . . . . . . .
23“VSC TRAC” warning light 50
. . . . . . . . . . . . . . . . . . . . .
24Downhill assist control system
indicator light 326 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25Rear height control indicator lights 319
. . . . . . . . . . .
26Security indicator light 12, 175
. . . . . . . . . . . . . . . . . . .
27SRS warning light 46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Trip meter reset knob 42
. . . . . . . . . . . . . . . . . . . . . . . . .
29Odometer and trip meter 42
. . . . . . . . . . . . . . . . . . . . . .
30Low fuel level warning light 51
. . . . . . . . . . . . . . . . . . . .
31Fuel gauge 40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BASIC OPERATION
1
QUICK REFERENCE
Quick reference
Driver’s seat2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . .
Steering wheel 2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . .
Automatic transmission 3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\

Headlight and turn signal switch 4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper switch 5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . .

BPY011
BPY019
Shift while pressing the brake pedal.
(Ignition switch must be in the “ON” position.)
OPERATION OF SELECTOR LEVER
SELECTOR LEVER POSITION
P: Parking, engine starting and key removal
position
R: Reverse position
N: Neutral position
D: Normal driving position (shifting into overdrive
possible)
4: Position for engine braking (shifting into over-
drive not possible)
3, 2: Position for more powerful engine braking
L: Position for maximum engine braking
NOTE: When the cruise control is being used, even if you downshift from \
“D” to “4”, engine braking will not be enabled
because the cruise control is not cancelled. For the operation to decre\
ase the vehicle speed, see page 313.
QUICK REFERENCE
3
3. AUTOMATIC TRANSMISSION

Finish
GAUGES, METERS AND SERVICE REMINDER INDICATORS
47
(e) Malfunction Indicator Lamp
This lamp comes on when the ignition key is turned to the
“ON” position and goes off after the engine starts. This
means that the warning light system is operating properly.
If the lamp remains on, or the lamp comes on while driving,
first check the followings.
 Empty fuel tank
If the fuel tank is empty, refuel immediately.
 Loose fuel tank cap
If the fuel tank cap is loose, securely tighten it.
These cases are temporary malfunctions. The malfunction
indicator lamp will go off after taking several driving trips.
If the lamp will not go off even after the several trips, contact
your Lexus dealer as soon as possible.
If the fuel tank is not empty or the fuel tank cap is not
loose ...
 There is a problem somewhere in the engine, emission
control system, electronic throttle control system, automatic
transmission electrical system or warning light system itself.
Contact your Lexus dealer as soon as possible to service the
vehicle.
If the engine speed does not increase with the accelerator
pedal depressed down, there may be a problem somewhere
in your electronic throttle control system. At this time, vibration may occur. However, if you depress the
accelerator pedal more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle checked by your
Lexus dealer as soon as possible.
Even if the abnormality of the electronic throttle control system
is corrected during low speed driving, the system may not be
recovered until the engine is stopped and the ignition key is
turned to “ACC” or “LOCK” position.
CAUTION
Be especially careful to prevent erroneous pedal
operation.
Emissions inspection and maintenance (I/M) programs
Your vehicle may not pass a state emission inspection if the
malfunction indicator lamp remains on. Contact your Lexus
dealer to check your vehicle’s emission control system and
OBD (On−Board Diagnostics) system before taking your
vehicle for the inspection.
For details, see “Emissions inspection and maintenance (I/M)
programs” on page 401.

Finish
GAUGES, METERS AND SERVICE REMINDER INDICATORS
49
(g) Open Door Warning Light
This light remains on until all the side doors and back door are
completely closed.
(h) Unengaged “Park” Warning Light
This light warns that the transmission “Park” mechanism is not
engaged. If the four −wheel drive control is in the “N” position
while the selector lever is in the “P” position, the transmission
will disengage and the wheels will not lock.
CAUTION
To restore the park function, shift the fourwheel drive
control out of “N”.
(i) Automatic Transmission Fluid Temperature Warning Light
This light warns that the automatic transmission fluid
temperature is too high.
If this light comes on while you are driving, slow down and pull
off the road. Stop the vehicle at a safe place and put the
selector lever in “P” and leave the engine idling until the light
goes off. If the light goes off, you can start the vehicle again.
If the light does not go off, call a Lexus dealer or qualified repair
shop for assistance.
NOTICE
Continued driving with the warning light on may
damage the automatic transmission.

COMFORT ADJUSTMENT
11 6
CAUTION
Do not adjust the mirror while the vehicle is moving.
Doing so may cause the driver to mishandle the
vehicle and an accident may occur , resulting in death
or serious injuries.
 Since the mirror surfaces can get hot, do not touch
them when the outside rear view mirror defogger
switch is on.
Power rear view mirror control
 1 Master switch 2 Control switch
To adjust the power rear view mirror, first place the master
switch at “L” (left) or “R” (right), and push the contro\
l
switch on the desired side.
The power rear view mirrors can be adjusted when the key is
in the “ACC” or “ON” position.
When the automatic transmission selector lever is shifted
into “R” position with the master switch in the “L” or “R\
”
position, the rear view mirrors automatically down to help
backing up.
The mirrors return to the previous position in the following
operations.
 Shift the transmission lever out of “R” position.
 Place the master switch in the neutral position.

SECTION 3 – 1
296
STARTING AND DRIVING
Starting and driving
Three−way catalytic converters297
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine exhaust caution 298
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before starting the engine 299
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition switch with steering lock 300
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake 301
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
How to start the engine 302
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission 303
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Four−wheel drive system 309
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise control 312
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Rear height control air suspension 315
. . . . . . . . . . . . . . . . . . . . . . . . .
Electronic modulated suspension 320
. . . . . . . . . . . . . . . . . . . . . . . . . .
Active traction control system 321
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle skid control system 323
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Downhill assist control system 326
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill −start assist control system 329
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake system 331
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Brake pad wear limit indicators 335
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Limited −slip differential 336
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of tires 336
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . .

STARTING AND DRIVING
301
“LOCK” Engine is off and the steering wheel is locked.
The ignition key can be removed only at this position.
To turn the key from “ACC” to the “LOCK” position, you must
put the transmission selector lever in the “P” position.
Once you remove the key, the engine immobiliser system is
automatically set. See “Engine immobiliser system” on page
12.
When starting the engine, the key may seem stuck at the
“LOCK” position. To free it, first be sure the key is pushed all
the way in, and then rock the steering wheel slightly while
turning the key gently.
If, in an emergency, you must turn the engine off while the
vehicle is moving, turn the key only to “ACC”.
PARKING BRAKE
To set: Pull up the lever. For better holding power, first
depress the brake pedal and hold it while setting the
parking brake.
To release: Pull up the lever slightly (
1 ), press the lock
release button ( 2 ), and lower the lever ( 3 ).
Before leaving your vehicle, firmly apply the parking brake. For
better holding power, first depress the brake pedal and hold it
while setting the parking brake.
CAUTION
Before driving, make sure the parking brake is fully
released and that the parking brake reminder light is off.

STARTING AND DRIVING
303
AUTOMATIC TRANSMISSION
Your automatic transmission has a shift lock system to
minimize the possibility of incorrect operation. This
means you can only shift out of “P” position when the
brake pedal is depressed with the ignition switch in “ON”
position ()
31PY039
The shift position is displayed beside the selector lever
and on the instrument cluster.
P: Parking, engine starting and key removal position
R: Reverse position
N: Neutral position
D: Normal driving position (Shifting into overdrive possible)
4: Position for engine braking (Shifting into overdrive not
possible)
When the cruise control is being used, even if you
downshift from “D” to “4”, engine braking will not be
enabled because the cruise control is not cancelled. For
the operation to decrease the vehicle speed, see page
314.
3, 2: Position for more powerful engine braking
L: Position for maximum engine braking